/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package dateManager;

import friendManager.LookFriendBean;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.util.ArrayList;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author DELL
 */
public class LookDateServlet extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        try (PrintWriter out = response.getWriter()) {
            /* TODO output your page here. You may use following sample code. */
            out.println("<!DOCTYPE html>");
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet LookDateServlet</title>");
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet LookDateServlet at " + request.getContextPath() + "</h1>");
            out.println("</body>");
            out.println("</html>");
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        String userName = request.getParameter("userName");

        try {

            Connection con = null;
            java.sql.Statement stmt = null;
            ResultSet rs = null;
            Class.forName("com.mysql.jdbc.Driver");
            HttpSession session = request.getSession();
            String url = "jdbc:mysql://localhost:3306/person";

            con = DriverManager.getConnection(url, "skyline", "739349");

            stmt = con.createStatement();
            String sql = "select * from date where userName='" + userName + "'";

            rs = stmt.executeQuery(sql);

            ArrayList dateList = null;
            if ((ArrayList) session.getAttribute("dateList") == null) {

                dateList = new ArrayList();

                while (rs.next()) {

                    LookDateBean dateBean = new LookDateBean();
                    dateBean.setDate(rs.getString("date"));
                    dateBean.setThing(rs.getString("thing"));
                   dateList.add(dateBean);
                    session.setAttribute("dateList", dateList);

                }

            }

            rs.close();
            stmt.close();
            con.close();
            response.sendRedirect("http://localhost:8081/PersonInforMSys/dateManager/lookDate.jsp");

        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        doGet(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
